/* Copyright (c) 2006-2015, Universities Space Research Association (USRA).
 *  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Universities Space Research Association nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY USRA ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL USRA BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package gov.nasa.luv;

import javax.swing.JTree;

/**
 * This class was modeled after the CheckNodeTreeExample, CheckNode, CheckRenerer
 * classes from Tame Swing examplescreated by Nobuo Tamemasa.
 *
 * http://devdaily.com/java/swing/tame/
 * 
@author Nobuo Tamemasa
@version 1.0 01/11/99
*/

public class NodeSelectionListener
    extends java.awt.event.MouseAdapter {

    JTree tree;

    NodeSelectionListener(JTree tree) {
        this.tree = tree;
    }

    public void mouseClicked(java.awt.event.MouseEvent e) {
        int x = e.getX();
        int y = e.getY();
        int row = tree.getRowForLocation(x, y);
        javax.swing.tree.TreePath path = tree.getPathForRow(row);

        if (path != null) {
            CheckNode node = (CheckNode) path.getLastPathComponent();
            boolean isSelected = !(node.isSelected());
            node.setSelected(isSelected);

            ((javax.swing.tree.DefaultTreeModel) tree.getModel()).nodeChanged(node);

            if (row == 0) {
                tree.revalidate();
                tree.repaint();
            }
        }
    }
}
